离心机
单调函数
本构方程
岩土工程
有限元法
结构工程
数学
材料科学
工程类
数学分析
物理
核物理学
作者
Merita Tafili,Patrick Staubach,Jan Macháček,Hauke Zachert,Torsten Wichtmann
出处
期刊:Geotechnique
[Thomas Telford Ltd.]
日期:2024-05-17
卷期号:: 1-17
标识
DOI:10.1680/jgeot.23.00268
摘要
A critical investigation of three constitutive models for clay by means of analyses of a sophisticated laboratory testing programme and of centrifuge tests on monopiles in clay subjected to (cyclic) lateral loading is presented. Constitutive models of varying complexity – namely, the basic modified Cam Clay model, the hypoplastic model with intergranular strain (known as the clay hypoplasticity model) and the more recently proposed anisotropic visco-intergranular strain anisotropy (AVISA) model – are considered. From the simulations of the centrifuge tests with monotonic loading it is concluded that all three constitutive models give satisfactory results if a proper calibration of constitutive model parameters and proper initialisation of state variables is ensured. In the case of cyclic loading, the AVISA model is found to offer superior performance over the hypoplastic model with intergranular strain.
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